本文選題：羥基磷灰石 + 羧甲基纖維素�。� 參考：《武漢科技大學》2015年碩士論文

【摘要】：黃藥是有毒有害物質(zhì)，具有惡臭的氣味，即使選礦廢水中含量極少，亦可導致尾礦庫周圍空氣都有異臭，并破壞生態(tài)系統(tǒng)平衡。所以，選擇一個方便、簡潔、經(jīng)濟、快速的方法來處理黃藥是一個亟待解決的問題。光催化反應降解法有著方便簡潔，反應產(chǎn)物無污染等優(yōu)點，所以得到廣泛的重視。 多孔材料制備有多種成熟方法，包括層間化學法、模板合成法、共混法、插層法和層離技術(shù)等，其中模板合成技術(shù)是制備有序多孔材料的有效手段。該方法可以實現(xiàn)磷灰石多孔材料孔徑、壁厚及形貌控制，應用具有重要意義。 本研究選取天然磷礦石為原料合成羥基磷灰石，將其作為水處理劑或者載體。為了得到結(jié)構(gòu)和性能可控的羥基磷灰石（HAP），采取了以羧甲基纖維素（CMC）為模板合成HAP，通過CMC復雜的網(wǎng)狀結(jié)構(gòu)及其含有的羧基、羥基共同調(diào)節(jié)HAP的形貌，利用超聲振蕩調(diào)節(jié)HAP比表面積以增加HAP表面活性，再將合成的HAP與鈦酸丁酯復合制備光催化復合材料，同時改變HAP與鈦酸丁酯復合過程中鈦酸丁酯的水解速度，，以調(diào)節(jié)二氧化鈦在HAP上的粒度和分布提高復合材料的光催化性能。最后通過其對甲基橙的脫色作用研究其光催化性能，并最終用于黃藥的光催化降解。結(jié)果表明通過改變CMC添加量可以控制HAP結(jié)構(gòu)及形貌，對于黃藥降解效果而言，在CMC添加量為7%，超聲振蕩5min，Ti/HAP質(zhì)量比為10%，復合材料焙燒溫度為600℃且焙燒6h時可使50mg/L黃藥降解率達到99.99%，達到國家地表水排放標準(GB3838-2002)。
[Abstract]:Xanthate is a toxic and harmful substance, with odour odor, even if the concentration of the mineral processing wastewater is very small, it can also cause the odor of the air around the tailings reservoir and destroy the balance of the ecosystem. Therefore, it is an urgent problem to choose a convenient, simple, economical and fast method to deal with xanthate. Clean, the reaction product has no pollution and so on, so it has received extensive attention.
There are many methods of preparation of porous materials, including interlayer chemical method, template synthesis, blending, intercalation and laminating, among which template synthesis is an effective means to prepare ordered porous materials. This method can realize pore size, wall thickness and morphology control of apatite porous materials. The application of this method is of great significance.
In this study, the natural phosphate rock was selected as the raw material to synthesize hydroxyapatite as a water treatment agent or carrier. In order to obtain the hydroxyapatite (HAP) with controllable structure and properties, HAP was synthesized by using carboxymethyl cellulose (CMC) as a template. The morphology of HAP was regulated by the complex network structure of CMC and its carboxyl group and hydroxyl group. The ultrasonic oscillation regulates the surface area of HAP to increase the surface activity of HAP, and then compounded the synthesized HAP with butyl titanate to prepare the photocatalytic composite, and change the hydrolysis rate of butyl titanate in the process of HAP and butyl titanate, in order to adjust the photocatalytic properties of the composite with the size and distribution of titanium dioxide on HAP. Finally, the photocatalytic properties of the composites are obtained. The photocatalytic performance of methyl orange is studied and the photocatalytic degradation of xanthate is finally used. The results show that the structure and morphology of HAP can be controlled by the addition of CMC. For the degradation effect of the xanthate, the addition amount of CMC is 7%, the ultrasonic oscillation 5min, the mass ratio of Ti/HAP is 10%, the calcining temperature of the composite material is 600 and the calcination of 6h. The degradation rate of xanthate 50mg/L can reach 99.99%, reaching the national surface water discharge standard (GB3838-2002).
【學位授予單位】：武漢科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：X751;O643.36

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