水热合成分子筛及其净化Cr(Ⅵ)废水  

The hydrothermal synthesis of molecular sieves and purification of Cr(Ⅵ)wastewater

作　　者：施晓文 付欣悦 黄田发 王义安 Shi Xiaowen;Fu Xinyue;Huang Tianfa;Wang Yi’an(Ji'an Science and Technology Innovation and Development Center;College of Life Sciences,Jinggangshan University;Ji'an Judicial Expertise Center,Ji’an 343000)

机构地区：[1]吉安市科技创新发展中心 [2]井冈山大学生命科学学院 [3]吉安市司法鉴定中心,江西吉安343000

出　　处：《环保科技》2024年第6期12-15,共4页Environmental Protection and Technology

摘　　要：Cr(Ⅵ)是一种有害重金属,具有毒性和致癌性。分子筛具有高效吸附污染物的能力,可有效净化废水,保护环境和人类健康。本研究以NaOH和TMAOH为碱性激发剂,采用水热合成法成功合成了一种高效吸附Cr(Ⅵ)的分子筛。实验结果表明,该分子筛具有高Cr(Ⅵ)吸附容量,达到了17.11 mg/g。SEM、XRD结果表明Cr(Ⅵ)可被分子筛吸附,且主要以Na_(2)Cr_(2)O_(7)的形式存在于分子筛中。因此,该分子筛在净化Cr(Ⅵ)废水方面表现出良好的潜力。这项研究为水热合成分子筛及其在废水处理中的应用提供了有益的参考。Cr(Ⅵ)is recognized for its toxicity and carcinogenic properties.Molecular sieves are efficient at adsorbing pollutants,offering a promising approach to wastewater purification that safeguards both environmental and human health.This study reports the successful hydrothermal synthesis of a highly effective Cr(Ⅵ)adsorbing molecular sieve,utilizing NaOH and TMAOH as alkaline activators.The synthesized molecular sieve demonstrated a substantial Cr(Ⅵ)adsorption capacity,reaching 17.11 mg/g.Analytical techniques,including Scanning Electron Microscopy(SEM)and X-Ray Diffraction(XRD),revealed that Cr(Ⅵ)is predominantly adsorbed onto the molecular sieve as Na_(2)Cr_(2)O_(7).These findings underscore the potential of the molecular sieve for Cr(Ⅵ)wastewater remediation and contribute valuable insights into the hydrothermal synthesis of molecular sieves for environmental applications.

关 键 词：水热合成 分子筛 碱性激发剂 Cr(Ⅵ) 

分 类 号：X703[环境科学与工程—环境工程]