石墨相氮化碳的制備及光催化性能調(diào)控
發(fā)布時(shí)間：2018-07-31 16:29
【摘要】：目前,隨著工業(yè)化進(jìn)程的不斷深入,人類面臨著地球環(huán)境急劇惡化和全球能源短缺的巨大挑戰(zhàn),尤其是水中的污染物不計(jì)其數(shù),來(lái)源廣泛,其中大部分為有機(jī)物,有毒并且性質(zhì)非常穩(wěn)定,從而表現(xiàn)出難以降解的特質(zhì)。光催化技術(shù)近年來(lái)應(yīng)用于環(huán)境治理和污水處理,效果顯著。傳統(tǒng)的半導(dǎo)體二氧化鈦(TiO2)對(duì)可見(jiàn)光的響應(yīng)性差,不能廣泛地應(yīng)用于實(shí)際生活中。新型的光催化劑石墨相氮化碳(g-C_3N_4)不含金屬元素、無(wú)毒、帶隙結(jié)構(gòu)易調(diào)控等優(yōu)勢(shì)而受到極大的關(guān)注。而傳統(tǒng)方法制備的g-C_3N_4由于比表面積小、光催化效率低、光生載流子復(fù)合率高等缺點(diǎn),限制其廣泛應(yīng)用。據(jù)此,本論文采用復(fù)合半導(dǎo)體、負(fù)載貴金屬、增大比表面積和摻雜非金屬元素等方式來(lái)提高石墨相氮化碳光催化劑的可見(jiàn)光催化性能,具體研究?jī)?nèi)容如下:1.利用原位生成法,制備了Bi_2S_3含量可調(diào)的Bi_2S_3/g-C_3N_4復(fù)合光催化劑。通過(guò)X-射線衍射(XRD)、傅里葉紅外光譜(FT-IR)、掃描電子顯微鏡(SEM)、透射電子顯微鏡(TEM)、紫外-可見(jiàn)光漫反射光譜(DRS)、光致發(fā)光光譜(PL)、時(shí)間分辨熒光衰減光譜等分析手段對(duì)所制備的光催化劑的物相、形貌、結(jié)構(gòu)和性能進(jìn)行了表征分析。在可見(jiàn)光照射下,以有機(jī)染料(羅丹明B)為降解模型評(píng)價(jià)了Bi_2S_3/g-C_3N_4復(fù)合光催化劑的光催化性能。結(jié)果表明,短棒狀Bi_2S_3沉積在g-C_3N_4表面,顯著增強(qiáng)了g-C_3N_4的可見(jiàn)光催化性能,并且隨著窄帶隙半導(dǎo)體Bi_2S_3含量的不同,復(fù)合光催化劑Bi_2S_3/g-C_3N_4的光催化性能發(fā)生變化,其中Bi_2S_3含量為5 wt%時(shí)表現(xiàn)出最佳的可見(jiàn)光催化活性。利用捕獲劑、NBT轉(zhuǎn)化、對(duì)苯二甲酸-熒光光譜技術(shù),確定光催化過(guò)程中h+是反應(yīng)體系中主要的活性物種,?O-2是反應(yīng)體系中的次要活性物種。此外,對(duì)復(fù)合光催化劑Bi_2S_3/g-C_3N_4光催化活性增強(qiáng)機(jī)理進(jìn)行了研究,Bi_2S_3的加入顯著增強(qiáng)了g-C_3N_4對(duì)可見(jiàn)光的吸收,并且與g-C_3N_4之間形成了異質(zhì)結(jié),促進(jìn)半導(dǎo)體光生電子與空穴的有效分離,延長(zhǎng)載流子壽命,從而顯著增強(qiáng)g-C_3N_4的光催化性能。2.通過(guò)三步法合成g-C_3N_4/PPy/Ag三元復(fù)合光催化劑。首先,將三聚氰胺在高溫下煅燒得到石墨相氮化碳光催化劑,然后原位聚合吡咯得到一系列的g-C_3N_4/PPy復(fù)合光催化劑,最后將Ag沉積在g-C_3N_4/PPy表面得到g-C_3N_4/PPy/Ag復(fù)合光催化劑。在可見(jiàn)光下,降解四環(huán)素(TC)評(píng)價(jià)樣品的光催化活性。研究了聚吡咯和Ag的負(fù)載量對(duì)g-C_3N_4/PPy/Ag的光催化活性的影響。通過(guò)對(duì)樣品的光學(xué)性質(zhì)和電子結(jié)構(gòu)進(jìn)行分析可得,聚吡咯和銀對(duì)提高g-C_3N_4/PPy/Ag光催化活性起到了協(xié)同作用。因此,相比于g-C_3N_4、g-C_3N_4/PPy、g-C_3N_4/Ag降解四環(huán)素,g-C_3N_4/PPy/Ag三元復(fù)合光催化劑表現(xiàn)出了較高的光催化活性。此外,對(duì)g-C_3N_4/PPy/Ag光催化劑的高效光催化機(jī)理進(jìn)行了分析,聚吡咯與g-C_3N_4能帶匹配加快了光生載流子分離,負(fù)載的銀由于SPR效應(yīng)作為電子受體也起到了重要作用。3.以球型聚酚醛樹(shù)脂作為模板劑,將三聚氰胺通過(guò)液相混合攪拌的方式包覆在模板上,分別在氮?dú)夂脱鯕庵羞M(jìn)行兩次煅燒將聚合物模板除去,最終制備出具有多孔結(jié)構(gòu)的g-C_3N_4(CN)。通過(guò)一系列表征測(cè)試手段對(duì)所制備的產(chǎn)物進(jìn)行結(jié)構(gòu)、形貌和光學(xué)性能分析,結(jié)果表明,所制備的g-C_3N_4呈現(xiàn)多孔結(jié)構(gòu),對(duì)可見(jiàn)光地吸收顯著增強(qiáng),光生載流子復(fù)合率顯著降低。在可見(jiàn)光照射下,以RhB為降解對(duì)象,評(píng)價(jià)合成樣品的光催化性能。結(jié)果表明經(jīng)過(guò)O2煅燒后得到的多孔g-C_3N_4比直接在N2氣氛下煅燒得到的樣品光催化性能優(yōu)越,并且當(dāng)模板劑投入量為0.021 g時(shí),得到的多孔氮化碳(CN-0.021)光催化性能最佳,分別是純g-C_3N_4和C/CN-0.021的7.8和2.2倍。此外,對(duì)多孔g-C_3N_4光催化性能提高的原因進(jìn)行了分析,其具有較大的比表面積(150.5 m2/g)和內(nèi)部的孔道結(jié)構(gòu),是其光催化性能提高的主要因素。4.在多孔氮化碳的合成基礎(chǔ)上,以磷酸氫二銨((NH4)2HPO4)為磷源,同步實(shí)現(xiàn)磷摻雜多孔氮化碳光催化材料。固定三聚氰胺和模板劑聚酚醛樹(shù)脂球的量,改變加入的(NH4)2HPO4的量,制備了一系列磷摻雜多孔氮化碳(PCN)光催化材料。采用RhB為降解模型,評(píng)價(jià)所制備樣品的光催化活性。用氮?dú)馕矫摳降葴鼐�測(cè)得PCN-0.3的比表面積(131.2 m2/g)小于CN-0.021(150.5 m2/g),但其光催化活性沒(méi)有降低反而升高。并且探討了磷元素的最佳摻雜量,當(dāng)(NH4)2HPO4的投入量為0.3 g時(shí),制備的磷摻雜多孔氮化碳(PCN-0.3)催化效果最好,分別是純g-C_3N_4、磷摻雜氮化碳(P-C_3N_4)和多孔氮化碳(CN-0.021)的13.4、2.9和1.7倍。通過(guò)對(duì)純g-C_3N_4、P-C_3N_4、CN-0.021和PCN-0.3光催化劑的光學(xué)性質(zhì)進(jìn)行對(duì)比,對(duì)磷摻雜多孔氮化碳光催化活性提高的原因進(jìn)行了分析,主要?dú)w結(jié)于大比表面積提供更多的反應(yīng)位點(diǎn)和磷摻雜減小禁帶寬度共同作用的結(jié)果。
[Abstract]:At present, with the continuous deepening of the process of industrialization, human beings are faced with the great challenge of the rapid deterioration of the earth's environment and the global energy shortage, especially the numerous pollutants in the water. Most of them are organic, toxic and very stable, thus showing the characteristics that are difficult to degrade. Photocatalytic technology has been applied in recent years. The effect of the environmental treatment and sewage treatment is remarkable. The traditional semiconductor titanium dioxide (TiO2) has poor response to visible light and can not be widely used in real life. The new type of photocatalyst graphite phase carbon nitride (g-C_3N_4) has been paid great attention to the advantages of non-toxic, non-toxic and easy to regulate the band gap structure. As a result of small specific surface area, low photocatalytic efficiency and high carrier recombination rate, g-C_3N_4 restricts its wide application. Accordingly, this paper uses composite semiconductors, loaded precious metals, increases specific surface area and doping non-metallic elements to improve the visible photocatalytic performance of graphite phase carbon nitride photocatalyst. As follows: 1. the Bi_2S_3/g-C_3N_4 composite photocatalyst with adjustable Bi_2S_3 content was prepared by in situ formation. Through X- ray diffraction (XRD), Fourier infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscope (TEM), UV visible diffuse reflectance spectroscopy (DRS), photoluminescence (PL), and time resolved fluorescence decay spectra, etc. Analysis was made on the phase, morphology, structure and properties of the prepared photocatalyst. Under visible light, the photocatalytic performance of Bi_2S_3/g-C_3N_4 composite photocatalyst was evaluated with organic dye (Luo Danming B) as degradation model. The results showed that the short rod like Bi_2S_3 was deposited on the surface of g-C_3N_4, and the g-C_3N_4 was significantly enhanced. The photocatalytic performance of the photocatalyst is visible, and with the difference of the Bi_2S_3 content of the narrow band gap semiconductor, the photocatalytic performance of the composite photocatalyst Bi_2S_3/g-C_3N_4 changes. The best visible photocatalytic activity is shown when the Bi_2S_3 content is 5 wt%. Using the capture agent, the NBT conversion, the phenylene two formic acid fluorescence spectroscopy, and the determination of the h+ in the photocatalytic process The main active species in the reaction system, O-2 is a secondary active species in the reaction system. In addition, the mechanism of the enhanced photocatalytic activity of the composite photocatalyst was studied. The addition of Bi_2S_3 significantly enhanced the absorption of visible light by g-C_3N_4, and formed a heterojunction with g-C_3N_4 to promote semiconductor light generation. The effective separation of the sub and hole, prolonging the lifetime of the carrier, and significantly enhancing the photocatalytic performance of g-C_3N_4.2. by three step method to synthesize the g-C_3N_4/PPy/Ag three element composite photocatalyst. First, the calcined melamine was calcined at high temperature to get the graphite phase carbon nitride photocatalyst, and then a series of g-C_3N_4/PPy composite light was obtained by in situ polymerization of pyrrole. At last, Ag was deposited on the surface of g-C_3N_4/PPy to obtain the g-C_3N_4/PPy/Ag composite photocatalyst. The photocatalytic activity of the sample was evaluated by degradation of tetracycline (TC) under visible light. The effect of the load of polypyrrole and Ag on the photocatalytic activity of g-C_3N_4/PPy/Ag was investigated. The optical properties and electronic structures of the samples were obtained by analyzing the photocatalytic activity of the samples. Polypyrrole and silver have synergistic effect on improving the photocatalytic activity of g-C_3N_4/PPy/Ag. Therefore, compared with g-C_3N_4, g-C_3N_4/PPy, g-C_3N_4/Ag degradation of tetracycline, g-C_3N_4/PPy/Ag three element composite photocatalyst has higher photocatalytic activity. In addition, the high effective photocatalytic mechanism of g-C_3N_4/PPy/Ag photocatalyst was analyzed. The matching of pyrrole and g-C_3N_4 energy band accelerates the separation of light generated carriers. The loaded silver has played an important role in the SPR effect as the electron acceptor..3. is coated on the template by mixing the liquid phase with the polyphenol formaldehyde resin. The two times calcined in nitrogen and oxygen, the polymer mold is carried out respectively. The porous structure of g-C_3N_4 (CN) was finally prepared. The structure, morphology and optical properties of the prepared products were analyzed by a series of characterization tests. The results showed that the prepared g-C_3N_4 showed a porous structure, significantly enhanced the visible light and ground absorption, and reduced the recombination rate of the optical carrier significantly. Under visible light, The photocatalytic performance of the synthetic samples was evaluated with RhB as the degradation object. The results showed that the porous g-C_3N_4 obtained after O2 calcined was superior to the calcined samples directly under the N2 atmosphere, and when the input amount of the template was 0.021 g, the photocatalytic performance of the porous carbon (CN-0.021) was the best, which was pure g-C_3N_4 and C/, respectively. 7.8 and 2.2 times of CN-0.021. In addition, the reasons for the enhancement of the photocatalytic performance of porous g-C_3N_4 have been analyzed. It has a larger specific surface area (150.5 m2/g) and internal pore structure, which is the main factor to improve the photocatalytic performance of.4.. On the basis of the synthesis of porous carbon nitride, the phospho diammonium phosphate ((NH4) 2HPO4) is used as the phosphorus source to synchronize the phosphorus. A series of phosphorus doped porous carbon nitride (PCN) photocatalytic materials were prepared by fixing the amount of melamine and template polyphenolic resin balls fixed with melamine and template and changing the amount of (NH4) 2HPO4. The photocatalytic activity of the prepared samples was evaluated by using RhB as degradation model. PCN-0.3 was measured with nitrogen adsorption desorption isotherm. The specific surface area (131.2 m2/g) is less than CN-0.021 (150.5 m2/g), but its photocatalytic activity is not reduced, but the optimum doping amount of phosphorus is discussed. When the input of (NH4) 2HPO4 is 0.3 g, the preparation of phosphorus doped porous carbon nitride (PCN-0.3) is the best catalyst, which is pure g-C_3N_4, phosphorus doped carbon nitride (P-C_3N_4) and porous nitrogen, respectively. By comparing the optical properties of pure g-C_3N_4, P-C_3N_4, CN-0.021 and PCN-0.3 photocatalysts, the reasons for the enhancement of photocatalytic activity of phosphorus doped porous carbon nitride were analyzed by comparing the optical properties of the pure g-C_3N_4, P-C_3N_4, CN-0.021 and PCN-0.3 photocatalysts. The main attributable to the larger surface area provided more reaction sites and the combination of phosphorus doping to reduce the band gap width. The result.
【學(xué)位授予單位】：江南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：O643.36;O644.1
本文編號(hào)：2156151
[Abstract]:At present, with the continuous deepening of the process of industrialization, human beings are faced with the great challenge of the rapid deterioration of the earth's environment and the global energy shortage, especially the numerous pollutants in the water. Most of them are organic, toxic and very stable, thus showing the characteristics that are difficult to degrade. Photocatalytic technology has been applied in recent years. The effect of the environmental treatment and sewage treatment is remarkable. The traditional semiconductor titanium dioxide (TiO2) has poor response to visible light and can not be widely used in real life. The new type of photocatalyst graphite phase carbon nitride (g-C_3N_4) has been paid great attention to the advantages of non-toxic, non-toxic and easy to regulate the band gap structure. As a result of small specific surface area, low photocatalytic efficiency and high carrier recombination rate, g-C_3N_4 restricts its wide application. Accordingly, this paper uses composite semiconductors, loaded precious metals, increases specific surface area and doping non-metallic elements to improve the visible photocatalytic performance of graphite phase carbon nitride photocatalyst. As follows: 1. the Bi_2S_3/g-C_3N_4 composite photocatalyst with adjustable Bi_2S_3 content was prepared by in situ formation. Through X- ray diffraction (XRD), Fourier infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscope (TEM), UV visible diffuse reflectance spectroscopy (DRS), photoluminescence (PL), and time resolved fluorescence decay spectra, etc. Analysis was made on the phase, morphology, structure and properties of the prepared photocatalyst. Under visible light, the photocatalytic performance of Bi_2S_3/g-C_3N_4 composite photocatalyst was evaluated with organic dye (Luo Danming B) as degradation model. The results showed that the short rod like Bi_2S_3 was deposited on the surface of g-C_3N_4, and the g-C_3N_4 was significantly enhanced. The photocatalytic performance of the photocatalyst is visible, and with the difference of the Bi_2S_3 content of the narrow band gap semiconductor, the photocatalytic performance of the composite photocatalyst Bi_2S_3/g-C_3N_4 changes. The best visible photocatalytic activity is shown when the Bi_2S_3 content is 5 wt%. Using the capture agent, the NBT conversion, the phenylene two formic acid fluorescence spectroscopy, and the determination of the h+ in the photocatalytic process The main active species in the reaction system, O-2 is a secondary active species in the reaction system. In addition, the mechanism of the enhanced photocatalytic activity of the composite photocatalyst was studied. The addition of Bi_2S_3 significantly enhanced the absorption of visible light by g-C_3N_4, and formed a heterojunction with g-C_3N_4 to promote semiconductor light generation. The effective separation of the sub and hole, prolonging the lifetime of the carrier, and significantly enhancing the photocatalytic performance of g-C_3N_4.2. by three step method to synthesize the g-C_3N_4/PPy/Ag three element composite photocatalyst. First, the calcined melamine was calcined at high temperature to get the graphite phase carbon nitride photocatalyst, and then a series of g-C_3N_4/PPy composite light was obtained by in situ polymerization of pyrrole. At last, Ag was deposited on the surface of g-C_3N_4/PPy to obtain the g-C_3N_4/PPy/Ag composite photocatalyst. The photocatalytic activity of the sample was evaluated by degradation of tetracycline (TC) under visible light. The effect of the load of polypyrrole and Ag on the photocatalytic activity of g-C_3N_4/PPy/Ag was investigated. The optical properties and electronic structures of the samples were obtained by analyzing the photocatalytic activity of the samples. Polypyrrole and silver have synergistic effect on improving the photocatalytic activity of g-C_3N_4/PPy/Ag. Therefore, compared with g-C_3N_4, g-C_3N_4/PPy, g-C_3N_4/Ag degradation of tetracycline, g-C_3N_4/PPy/Ag three element composite photocatalyst has higher photocatalytic activity. In addition, the high effective photocatalytic mechanism of g-C_3N_4/PPy/Ag photocatalyst was analyzed. The matching of pyrrole and g-C_3N_4 energy band accelerates the separation of light generated carriers. The loaded silver has played an important role in the SPR effect as the electron acceptor..3. is coated on the template by mixing the liquid phase with the polyphenol formaldehyde resin. The two times calcined in nitrogen and oxygen, the polymer mold is carried out respectively. The porous structure of g-C_3N_4 (CN) was finally prepared. The structure, morphology and optical properties of the prepared products were analyzed by a series of characterization tests. The results showed that the prepared g-C_3N_4 showed a porous structure, significantly enhanced the visible light and ground absorption, and reduced the recombination rate of the optical carrier significantly. Under visible light, The photocatalytic performance of the synthetic samples was evaluated with RhB as the degradation object. The results showed that the porous g-C_3N_4 obtained after O2 calcined was superior to the calcined samples directly under the N2 atmosphere, and when the input amount of the template was 0.021 g, the photocatalytic performance of the porous carbon (CN-0.021) was the best, which was pure g-C_3N_4 and C/, respectively. 7.8 and 2.2 times of CN-0.021. In addition, the reasons for the enhancement of the photocatalytic performance of porous g-C_3N_4 have been analyzed. It has a larger specific surface area (150.5 m2/g) and internal pore structure, which is the main factor to improve the photocatalytic performance of.4.. On the basis of the synthesis of porous carbon nitride, the phospho diammonium phosphate ((NH4) 2HPO4) is used as the phosphorus source to synchronize the phosphorus. A series of phosphorus doped porous carbon nitride (PCN) photocatalytic materials were prepared by fixing the amount of melamine and template polyphenolic resin balls fixed with melamine and template and changing the amount of (NH4) 2HPO4. The photocatalytic activity of the prepared samples was evaluated by using RhB as degradation model. PCN-0.3 was measured with nitrogen adsorption desorption isotherm. The specific surface area (131.2 m2/g) is less than CN-0.021 (150.5 m2/g), but its photocatalytic activity is not reduced, but the optimum doping amount of phosphorus is discussed. When the input of (NH4) 2HPO4 is 0.3 g, the preparation of phosphorus doped porous carbon nitride (PCN-0.3) is the best catalyst, which is pure g-C_3N_4, phosphorus doped carbon nitride (P-C_3N_4) and porous nitrogen, respectively. By comparing the optical properties of pure g-C_3N_4, P-C_3N_4, CN-0.021 and PCN-0.3 photocatalysts, the reasons for the enhancement of photocatalytic activity of phosphorus doped porous carbon nitride were analyzed by comparing the optical properties of the pure g-C_3N_4, P-C_3N_4, CN-0.021 and PCN-0.3 photocatalysts. The main attributable to the larger surface area provided more reaction sites and the combination of phosphorus doping to reduce the band gap width. The result.
【學(xué)位授予單位】：江南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：O643.36;O644.1
【參考文獻(xiàn)】
相關(guān)期刊論文 前7條
1 李曉金;盛珈怡;陳海航;許宜銘;;β-Bi_2O_3修飾Bi_2WO_6光催化降解苯酚及其可能機(jī)理[J];物理化學(xué)學(xué)報(bào);2015年03期
2 姬磊;王浩人;于瑞敏;姜震;汪懷遠(yuǎn);;異質(zhì)型BiOI/NaBiO_3光催化劑的合成及其光催化性能[J];無(wú)機(jī)化學(xué)學(xué)報(bào);2015年03期
3 姬磊;于瑞敏;王浩人;陳麗鐸;汪懷遠(yuǎn);;BiOCl/NaBiO_3復(fù)合材料的原位合成及光催化性能[J];高等學(xué)校化學(xué)學(xué)報(bào);2015年03期
4 張金水;王博;王心晨;;氮化碳聚合物半導(dǎo)體光催化[J];化學(xué)進(jìn)展;2014年01期
5 張金水;王博;王心晨;;石墨相氮化碳的化學(xué)合成及應(yīng)用[J];物理化學(xué)學(xué)報(bào);2013年09期
6 呂永鋼;李治軍;吳驪珠;王鵬;付立民;張建平;;利用時(shí)間分辨相干反斯托克斯拉曼散射技術(shù)研究光催化產(chǎn)氫反應(yīng)動(dòng)力學(xué)[J];物理化學(xué)學(xué)報(bào);2013年08期
7 李超,曹傳寶,朱鶴孫;電化學(xué)沉積法制備類石墨相氮化碳[J];科學(xué)通報(bào);2003年09期
相關(guān)博士學(xué)位論文 前5條
1 馬威;基于污水中抗生素殘留去除的選擇性吸附和降解及機(jī)理研究[D];江蘇大學(xué);2016年
2 管美麗;二維超薄鹵氧化鉍半導(dǎo)體納米材料的可控制備及其光催化性質(zhì)研究[D];中國(guó)科學(xué)技術(shù)大學(xué);2014年
3 黃立英;可見(jiàn)光響應(yīng)型石墨相氮化碳復(fù)合材料的制備及其降解有機(jī)污染物研究[D];江蘇大學(xué);2013年
4 徐遠(yuǎn)國(guó);等離子體型光催化材料的制備及其降解環(huán)境污染物研究[D];江蘇大學(xué);2013年
5 段芳;新型復(fù)合氧化物納米結(jié)構(gòu)的制備及其在可見(jiàn)光催化和吸附中的應(yīng)用[D];江南大學(xué);2011年
相關(guān)碩士學(xué)位論文 前7條
1 汪曉鳳;鹵氧化鉍光催化材料的制備及性能調(diào)控[D];江南大學(xué);2016年
2 張笑園;復(fù)合可見(jiàn)光催化材料的制備及其性能研究[D];石河子大學(xué);2016年
3 陳國(guó)輝;錫氧化物—二氧化鈦納米帶表面異質(zhì)結(jié)及其光催化與氣敏性能[D];山東大學(xué);2016年
4 李文強(qiáng);改性TiO_2/石墨烯復(fù)合物的制備與光催化性能研究[D];江南大學(xué);2015年
5 張琴;高效鉍系光催化材料的制備與性能研究[D];江南大學(xué);2015年
6 劉靖逸;鹵氧化鉍多級(jí)結(jié)構(gòu)的制備及其可見(jiàn)光催化性能研究[D];山東大學(xué);2015年
7 陳婷;新型前驅(qū)體合成介孔石墨相氮化碳材料及其在堿催化反應(yīng)中的研究[D];常州大學(xué);2015年
，本文編號(hào)：2156151
本文鏈接：http://sikaile.net/kejilunwen/huaxue/2156151.html
最近更新
教材專著
