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Carbon-containing bone hydroxyapatite obtained from tuna fish bone with high adsorption performance for Congo red

机译：含碳骨羟基磷灰石，从金枪鱼骨中获得，具有高吸附性能的刚果红色

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摘要

The carbon-containing bone hydroxyapatite (CBHA) has been obtained from tuna fish bone in which the carbon derived from the organics inside the bones acts as a dispersant. The XRD and TEM results indicated that the obtained HA is on the nanoscale and the N-2 adsorption/desorption isotherm showed that CBHA has mesoporous structure with an enhanced specific surface area (1129.0 m(2) g(-1)). Moreover, CBHA as an adsorbent for removal of Congo red (CR) from aqueous solution exhibited high adsorption capacity (329.0 mg g(-1)) and the adsorption pattern fitted well with Langmuir model (R-2 > 0.96). The adsorption kinetics of CBHA for CR followed the pseudo-second-order model. Thermodynamic parameters, including the Gibbs free energy (Delta G), enthalpy (Delta H), and entropy (Delta S), indicated that the adsorption of CR onto CBHA was feasible, spontaneous, and endothermic at the temperature range of 303-323 K. Thus, CBHA as an efficient and low-cost adsorbent can be applied to the treatment of industrial effluents contaminated with CR.
机译：含碳的骨羟基磷灰石（CBHA）已从金枪鱼骨中获得，其中源于骨内的有机物的碳作为分散剂。 XRD和TEM结果表明，所得HA处于纳米级，N-2吸附/解吸等温线表明CBHA具有增强的比表面积（1129.0m（2）G（-1））的中孔结构。此外，CBHA作为从水溶液中去除刚果红色（Cr）的吸附剂表现出高吸附能力（329.0mg（-1）），吸附图案与Langmuir模型很好（R-2> 0.96）。 CBA对CR的吸附动力学跟随伪二阶模型。热力学参数，包括Gibbs自由能（Delta G），焓（Delta H）和熵（δ），表明Cr在CBHA上的吸附是可行的，自发性和吸热在303-323k的温度范围内。因此，CBHA作为一种有效和低成本的吸附剂，可以应用于用Cr污染的工业污水处理。

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  • 来源
    《RSC Advances》 |2017年第43期|共6页
  • 作者

    Peng Qifan; Yu Fan; Huang Bicheng; Huang Yaqin;

  • 作者单位

    Beijing Univ Chem Technol Beijing Lab Biomed Mat Beijing 10029 Peoples R China;

    Beijing Univ Chem Technol Beijing Lab Biomed Mat Beijing 10029 Peoples R China;

    Beijing Univ Chem Technol Beijing Lab Biomed Mat Beijing 10029 Peoples R China;

    Beijing Univ Chem Technol Beijing Lab Biomed Mat Beijing 10029 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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