Facile Preparation of Porous Carbon Derived from Pomelo Peel for Efficient Adsorption of Methylene Blue
Wenlin Zhang,
Mingwan Liu,
Yuhong Zhao,
Qinhong Liao
Affiliations
Wenlin Zhang
Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science (Institute of Special Plants), Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Mingwan Liu
Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science (Institute of Special Plants), Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Yuhong Zhao
College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404199, China
Qinhong Liao
Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science (Institute of Special Plants), Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Pomelo peel waste-derived porous carbon (PPPC) was prepared by a facile one-step ZnCl2 activation method. The preparation parameters of PPPC were the mass ratio of ZnCl2 to pomelo peel of 2:1, carbonization temperature of 500 °C, and carbonization time of 1 h. This obtained PPPC possessed abundant macro-,meso-, and micro-porous structures, and a large specific surface area of 939.4 m2 g−1. Surprisingly, it had excellent adsorption ability for methylene blue, including a high adsorption capacity of 602.4 mg g−1 and good reusability. The adsorption isotherm and kinetic fitted with Langmuir and pseudo-second order kinetic models. This work provides a novel strategy for pomelo peel waste utilization and a potential adsorbent for treating dye wastewater.
