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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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含钛高炉渣催化剂的光催化活性
Keywords: 硫酸掺杂的含钛高炉渣催化剂,catio3/tio2晶相比,so42？含量,光催化还原
Abstract:
？以攀钢含钛高炉废渣为原料,在不同温度下煅烧合成了钙钛矿型硫酸掺杂的含钛高炉渣催化剂(sulfuricacid-modifiedtitanium-bearingblastfurnaceslag,stbbfs),研究了混晶结构和硫掺杂对含钛高炉渣光催化活性的影响.结果表明,含钛高炉渣催化剂具有钙钛矿/锐钛矿混晶结构,粉体的颗粒形状不规则,煅烧后粒径变大;在紫外区域具有很强的光吸收能力.stbbfs催化剂的光催化活性由cr(vi)的还原率评价.煅烧温度为400℃时,stbbfs催化剂的表面存在含量较高的so2-4和较高的catio3/tio2晶相比,具有较高的光催化活性.用500w中压汞灯照射10h,可将浓度为20mg？?？l-1的六价铬废水完全降解.
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