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Efficient Removal of Pb2+ from Water by Bamboo-Derived Thin-Walled Hollow Ellipsoidal Carbon-Based Adsorbent
Langmuir ( IF 3.7 ) Pub Date : 2022-09-28 , DOI: 10.1021/acs.langmuir.2c01706 Hongmin Ma 1, 2 , Yiyi Zhao 3 , Xingxing Li 1, 2 , Qiang Liao 1, 2 , Yibao Li 1, 2 , Dingfeng Xu 1, 2 , Yun-Xiang Pan 3
Langmuir ( IF 3.7 ) Pub Date : 2022-09-28 , DOI: 10.1021/acs.langmuir.2c01706 Hongmin Ma 1, 2 , Yiyi Zhao 3 , Xingxing Li 1, 2 , Qiang Liao 1, 2 , Yibao Li 1, 2 , Dingfeng Xu 1, 2 , Yun-Xiang Pan 3
Affiliation
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Lead ion (Pb2+) is one of the most common water pollutants. Herein, with bamboo as the raw material, we fabricate a thin-walled hollow ellipsoidal carbon-based adsorbent (CPCs900) containing abundant O-containing groups and carbon defects and having a specific surface area as large as 730.87 m2 g–1. CPCs900 shows a capacity of 37.26 mg g–1 for adsorbing Pb2+ in water and an efficiency of 98.13% for removing Pb2+ from water. This is much better than the activated carbon commonly used for removing Pb2+ from water (12.19 mg g–1, 30.48%). The bond interaction of Pb2+ with the O-containing groups on CPCs900 and the electrostatic interaction of Pb2+ with the electron-rich carbon defects on CPCs900 could be the main forces to drive Pb2+ adsorption on CPCs900. The outstanding adsorption performance of CPCs900 could be due to the abundant O-containing groups and carbon defects as well as the large specific surface area of CPCs900. Bamboo has a large reserve and a low price. The present work successfully converts bamboo into adsorbents with outstanding performances in removing Pb2+ from water. This is of great significance for meeting the huge industrial demand on highly efficient adsorbents for removing toxic metal ions from water.
中文翻译：
竹衍生薄壁空心椭球碳基吸附剂高效去除水中 Pb2+
铅离子（Pb 2+）是最常见的水污染物之一。在此，我们以竹子为原料，制备了一种薄壁空心椭圆碳基吸附剂（CPCs900），该吸附剂含有丰富的含氧基团和碳缺陷，比表面积高达730.87 m 2 g -1。CPCs900对水中 Pb 2+的吸附能力为 37.26 mg g –1 ，从水中去除 Pb 2+的效率为 98.13% 。这比通常用于从水中去除 Pb 2+的活性炭（12.19 mg g –1 , 30.48%）要好得多。Pb 2+的键相互作用与CPCs900上的含O基团以及Pb 2+与CPCs900上富电子碳缺陷的静电相互作用可能是驱动Pb 2+在CPCs900上吸附的主要力量。CPCs900 优异的吸附性能可能是由于丰富的含氧基团和碳缺陷以及 CPCs900 的大比表面积。竹子储量大，价格低。目前的工作成功地将竹子转化为吸附剂，在去除水中Pb 2+方面具有出色的性能。这对于满足高效吸附剂去除水中有毒金属离子的巨大工业需求具有重要意义。
更新日期：2022-09-28
中文翻译：
竹衍生薄壁空心椭球碳基吸附剂高效去除水中 Pb2+
铅离子（Pb 2+）是最常见的水污染物之一。在此，我们以竹子为原料，制备了一种薄壁空心椭圆碳基吸附剂（CPCs900），该吸附剂含有丰富的含氧基团和碳缺陷，比表面积高达730.87 m 2 g -1。CPCs900对水中 Pb 2+的吸附能力为 37.26 mg g –1 ，从水中去除 Pb 2+的效率为 98.13% 。这比通常用于从水中去除 Pb 2+的活性炭（12.19 mg g –1 , 30.48%）要好得多。Pb 2+的键相互作用与CPCs900上的含O基团以及Pb 2+与CPCs900上富电子碳缺陷的静电相互作用可能是驱动Pb 2+在CPCs900上吸附的主要力量。CPCs900 优异的吸附性能可能是由于丰富的含氧基团和碳缺陷以及 CPCs900 的大比表面积。竹子储量大，价格低。目前的工作成功地将竹子转化为吸附剂，在去除水中Pb 2+方面具有出色的性能。这对于满足高效吸附剂去除水中有毒金属离子的巨大工业需求具有重要意义。
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