含铬铝泥制备纳米AlO(OH)片  

Preparation of nano Al O(OH) flake from chromium-containing alumina sludge

作　　者：李微[1,2] 孙彤[1,2] 

机构地区：[1]渤海大学化学化工与食品安全学院,辽宁锦州121013 [2]渤海大学辽宁省应用化学重点实验室,辽宁锦州121013

出　　处：《现代化工》2015年第2期73-76,共4页Modern Chemical Industry

基　　金：中华环境保护基金会格平绿色行动辽宁环境科研教育"123工程"资助项目(CEPF2012-123-2-5);辽宁省教育厅科学技术研究项目(L2013429)

摘　　要：含铬铝泥是一种危险固体废弃物.以含铬铝泥酸溶液为原料,采用沉淀法制备了纳米AlO（OH）片,并对样品进行了XRD、FT-IR、SEM表征分析.研究结果表明,随着加水量增加,含铬铝泥的溶解率增大,当水的加入量为10 mL/g泥时,含铬铝泥的溶解率最大;随着H2SO4加入量的增加,含铬铝泥的溶解率增大,且当H2SO4加入量为9mL/（g泥）时,含铬铝泥的溶解率最大;随着溶解温度的升高,含铬铝泥的溶解率增大,且当溶解温度为70℃时,含铬铝泥的溶解率最大.采用含铬铝泥制备的样品为厚约8 nm、长宽约为100～200 nm分散性较好的片状纳米AlO（OH）.Chromium-containing alumina sludge is a kind of dangerous solid waste. The nano A10（OH） flakes are prepared from its acid solution by precipitation method. The samples are characterized by XRD, FT-IR and SEM. The results show that increasing the amount of water or sulfuric acid or dissolving temperature all leads to the increase of the solubility of chromium-containing alumina sludge. When the amount of water and sulfuric acid is 10 and 9 mL per gram chromium-containing alumina sludge, respectively, or at 70℃ of dissolving temperature, the highest solubility of chromium-containing alumina sludge can be achieved. The sample prepared from chromium-containing alumina sludge is nano A10（OH） flake with about 8 mn in thickness, 100 -200 nm in length and width,which has good dispersibility.

关 键 词：含铬铝泥 AlO(OH) 纳米 片状 

分 类 号：TB32[一般工业技术—材料科学与工程] X753[环境科学与工程—环境工程]