Hydrocarbon-Impacted Soils Supported Mn for Organic Pollutant Oxidation

Journal of Applied Materials and Technology Pub Date : 2024-02-12 DOI:10.31258/jamt.4.2.90-98

E. Saputra, Ahmad Fadli, B. Prawiranegara, A. Amri, D. Heltina, Syaiful Bahri, Ari Sandhyavitri, Fajar Restuhadi, H. Abid, Muhammad Rizwan Azhar, P. S. Utama

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Abstract

Hydrocarbon-impeded soil (HIS) is solid waste from spills or leaks during industrial activities that negatively impact the environment. This study aims to utilize HIS as catalyst support on MnO2 to degrade RhB (RhB) solution using Peroxymonosulfate (PMS) and to determine the optimum conditions for the catalyst to degrade RhB. The catalyst was synthesized by reacting HIS, calcined with KMnO4 with various catalyst supports with high and low Total contain Petroleum Hydrocarbon (TPH). The process degradation of Rhodamine Solution was carried out with various catalysts, PMS, and RhB concentrations. The catalyst was characterized using X-ray diffraction (XRD), Nitrogen gas adsorption-desorption (BET), and Scanning Electron Microscope-Energy Disperse Spectroscope (SEM-EDX). In this study, the best catalyst performance was MnO2@H-TPH, which could activate PMS to degrade RhB with dye removal of 98% in about 180 min, at conditions 10 g/L RhB, 0.1 g/L catalyst, and 3 g/L PMS with the activation energy of 16.3 kJ/mol.

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受碳氢化合物影响的土壤支持锰的有机污染物氧化作用

碳氢化合物受阻土壤（HIS）是工业活动中溢出或泄漏的固体废物，对环境造成负面影响。本研究旨在利用 HIS 作为二氧化锰上的催化剂载体，使用过一硫酸盐 (PMS) 降解 RhB 溶液，并确定催化剂降解 RhB 的最佳条件。催化剂是通过将 HIS 与煅烧过的 KMnO4 以及各种含石油烃（TPH）总量较高和较低的催化剂载体反应合成的。在使用不同催化剂、PMS 和 RhB 浓度的情况下，对罗丹明溶液进行了降解。使用 X 射线衍射 (XRD)、氮气吸附-解吸 (BET) 和扫描电子显微镜-能量分散光谱仪 (SEM-EDX) 对催化剂进行了表征。在这项研究中，催化剂性能最好的是 MnO2@H-TPH，在 10 g/L RhB、0.1 g/L 催化剂和 3 g/L PMS 的条件下，它可以活化 PMS 来降解 RhB，在约 180 分钟内染料去除率达到 98%，活化能为 16.3 kJ/mol。

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Journal of Applied Materials and Technology

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