废蛋壳降解水环境中所选阳离子染料的研究

Q4 Environmental Science

Pollution Research Pub Date : 2022-09-30 DOI:10.53550/pr.2022.v41i03.026

S. Mukherjee, H. Mukherjee, Soumi Betal

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引用次数: 0

摘要

近三十年来，世界范围内的鸡蛋产量显著增加，因此产生了大量的废弃蛋壳。鸡废蛋壳约占鸡蛋总重量的11%，其中含有碳酸钙(CaCO3)和氧化钙(CaO)。利用尿素(UES)对废蛋壳进行改性，并将其作为催化剂降解阳离子染料。通过对染料初始浓度、介质ph、接触时间和催化剂用量的优化，可以有效地降解亮绿和孔雀石绿。反应符合一级动力学。采用lcms研究了孔雀石绿的催化降解途径。因此，本研究可能有助于通过废蛋壳的增值去除选定的有机染料。

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VALORISATION OF WASTE EGGSHELL FOR DEGRADATION OF SELECTED CATIONIC DYES FROM THE AQUEOUS ENVIRONMENT

Egg production has been remarkably increased worldwide in the last thirty years, thereby itgenerates huge waste eggshell. Chicken waste eggshell is approximately 11% of the total eggweight and it contains calcium carbonate (CaCO3) and calcium oxide (CaO). In this work, wasteeggshell was modified by urea (UES) and used as a catalyst to degrade cationic dyes. Brilliant greenand Malachite green were efficiently degraded via optimization of initial concentration of dyes, pHof media, time of contact and amount of catalyst. The reaction followed first order kinetics. The LCMSstudy was performed to understand the catalytic degradation pathway of malachite green.Hence, the present study might be helpful for removal of selected organic dyes via valorisation ofwaste eggshell.

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Pollution Research Environmental Science-Water Science and Technology

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期刊介绍： POLLUTION RESEARCH is one of the leading enviromental journals in world and is widely subscribed in India and abroad by Institutions and Individuals in Industry, Research and Govt. Departments.