煅烧甘蔗渣的特性及其对镉的吸附能力。

IF 1.3 4区医学 Q4 CHEMISTRY, MEDICINAL

Chemical & pharmaceutical bulletin Pub Date : 2025-01-01 DOI:10.1248/cpb.c25-00282

Kaito Yamashiro, Ryo Miyamoto, Fumihiko Ogata, Naohito Kawasaki

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引用次数: 0

摘要

研究了不同焙烧温度（200 ~ 1000℃）下蔗渣（BG）对镉（Cd）的吸附特性。BGs的零电荷点（pHpzc）在4.3到6.5之间。pH值为4 ~ 8时吸附Cd的量高于pH值为2时。这些结果表明，BG表面的负电荷和Cd（II）阳离子的存在对Cd的吸附很重要。同时，随着BG焙烧温度的升高，BG吸附Cd的量和比表面积（SSA）增加。此外，偏相关分析显示，酸性表面官能团（SFGs）也与Cd吸附显著相关，独立于SSA。这些结果表明，SSA和酸性SFGs共同促进了Cd的吸附。

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Characteristics of Calcined Sugarcane Bagasse and Its Ability to Adsorb Cadmium from Aqueous Solutions.

This study evaluated the cadmium (Cd) adsorption characteristics of sugarcane bagasse (BG) calcined at different temperatures (200-1000°C). The point of zero charge (pH_pzc) of the BGs ranged from 4.3 to 6.5. The amount of Cd adsorbed was higher at pH 4-8 than at pH 2. These results indicate that the negative charge on the BG surface and the presence of Cd(II) cations are important for Cd adsorption. Meanwhile, the amount of Cd adsorbed and the specific surface area (SSA) of BG increased with increasing calcination temperature of BG. Furthermore, a partial correlation analysis revealed that acidic surface functional groups (SFGs) were also significantly associated with Cd adsorption, independently of SSA. These results suggest that both SSA and acidic SFGs jointly contribute to Cd adsorption.

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来源期刊

Chemical & pharmaceutical bulletin 医学-化学综合

CiteScore

3.20

自引率

5.90%

发文量

132

审稿时长

1.7 months

期刊介绍： The CPB covers various chemical topics in the pharmaceutical and health sciences fields dealing with biologically active compounds, natural products, and medicines, while BPB deals with a wide range of biological topics in the pharmaceutical and health sciences fields including scientific research from basic to clinical studies. For details of their respective scopes, please refer to the submission topic categories below. Topics: Organic chemistry In silico science Inorganic chemistry Pharmacognosy Health statistics Forensic science Biochemistry Pharmacology Pharmaceutical care and science Medicinal chemistry Analytical chemistry Physical pharmacy Natural product chemistry Toxicology Environmental science Molecular and cellular biology Biopharmacy and pharmacokinetics Pharmaceutical education Chemical biology Physical chemistry Pharmaceutical engineering Epidemiology Hygiene Regulatory science Immunology and microbiology Clinical pharmacy Miscellaneous.