Page 223 - 《精细化工)》2023年第10期
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第 10 期                   张欣磊,等:  芳胺废渣衍生多孔碳高效吸附去除对硝基苯酚                                   ·2301·


            墨烯团簇模型与 PNP 分子间的吸附相互作用力最                           参考文献:
            弱,为–72.95 kJ/mol。这也充分证实了 N、O 原子                    [1]   GAO X H (高秀红), LIU Z M (刘子明), TENG H H (滕洪辉), et al.
            掺杂能够提升碳基吸附剂对 PNP 的吸附性能。为了                              Adsorption-remove effect of p-nitrophenol in water by peanut shell
                                                                   biochar at different pyrolysis temperatures[J].  Transactions of the
            探究 N 原子数量对吸附能的影响,模拟了在缺陷处                               Chinese Society of Agricultural Engineering (农业工程学报), 2019,
            存在 4 个 N 原子的吡啶—N 4 结构和 3 个 N 原子的石                      35(7): 224-230.
                                                               [2]   BU L L (卜龙利). Microwave assisted catalytic wet air oxidation for
            墨—N 3 结构。可以看出,对于极性的吡啶—N 结构                             the treatment of toxic organic wastewater with high concentration
            的吸附能会随着 N 原子数量的增加产生大幅度提                                under ambient pressure using continuous flow mode[D].  Dalian:
                                                                   Dalian University of Technology (大连理工大学), 2006.
            高,吡啶—N 4 结构吸附能达到了–117.04 kJ/mol。在                  [3]   ZHANG X C (张笑丛), WANG C  (王琮), WU S H  (吴松海).
            O 原子修饰的结构中,羧基官能团吸附能最大,为                                Degradation of nitrophenols in wastewater by peroxymonosulfate
                                                                   activated by cobalt oxide with different morphologies[J]. Chemical
            –104.67 kJ/mol。                                        Industry and Engineering (化学工业与工程), 2020, 37(6): 38-47.
                 为了进一步研究 PNP 分子与上述吡啶—N 4 和                     [4]   LIU N, SHAO L S, WANG C, et al. Preparation of lignin modified
                                                                   hyper-cross-linked  nanoporous resins  and their efficient adsorption
            羧基功能化石墨烯团簇表面的相互作用力,引入不                                 for p-nitrophenol in aqueous solution and CO 2 capture[J]. International
            同颜色的映射符号(sign)(λ 2 )ρ 函数的非共价相                          Journal of Biological Macromolecules, 2022, 221: 25-37.
            互作用(NCI,如范德华力、氢键和空间位阻)分                            [5]   HADI P, XU M, NING C,  et al. A  critical review on preparation,
                                                                   characterization and utilization  of sludge-derived activated carbons
            析(图 10b)。NCI 是一种基于电子密度(ρ)和约                            for wastewater treatment[J].  Chemical Engineering Journal, 2015,
            化密度梯度的可视化指标。在 NCI 数据图中,一般                              260: 895-906.
                                                               [6]   ZHANG Y Z, MENG Y, CHEN L, et al. High lithium and sodium
            利用红色、绿色和蓝色来直观地表现作用力的类型。                                anodic performance of nitrogen-rich ordered mesoporous carbon
            其中用绿色表示该区域存在色散力和静电吸引力为                                 derived from alfalfa leaves by a ball-milling assisted template method[J].
                                                                   Journal of Materials Chemistry A, 2016, 4(44): 17491-17502.
            主的范德华力;蓝色表示存在氢键的强吸引力作用;                            [7]   ZHENG H S, GUO W Q, LI S, et al. Adsorption of p-nitrophenols
            红色则表示存在空间位阻等产生的排斥力                    [17] 。从图         (PNP) on microalgal biochar: Analysis of high adsorption capacity
                                                                   and mechanism[J]. Bioresource Technology, 2017, 244: 1456-1464.
            10b 可以发现,无论是吡啶—N 4 还是羧基修饰体系,                       [8]   SALIMI M, SALEHI Z, HEIDARI H, et al. Production of activated
            PNP 分子 和石墨烯团 簇表面的约 化密度梯度                               biochar from  Luffa cylindrica and its application for adsorption of
                                                                   4-nitrophenol[J]. Journal  of Environmental Chemical Engineering,
            (RDG)等面均呈现大面积的绿色,表明吸附过程                                2021, 9(4): 105403.
            的主要驱动力为低电子密度的范德华力。同时,                              [9]   PARK J M, KIM C M, JHUNG S H. Melamine/polyaniline-derived
                                                                   carbons with record-high adsorption capacities for effective removal
            PNP 分子中的酚羟基与吡啶—N 4 和羧基官能团团
                                                                   of  phenolic compounds from water[J]. Chemical Engineering
            簇表面的 O 原子间的 RDG 等面分别显示深蓝色和                             Journal, 2021, 420: 127627.
                                                               [10]  TIAN Y (田月), DONG  X Y (董晓涵), JIANG Y (蒋宇),  et al.
            浅蓝色,这归因于该区域存在由 O—H…N 和 O—
                                                                   Research progress in the removal  of PNP from wastewater by
            H…O 型氢键产生的强吸引力作用,排斥力主要是                                modified adsorption[J]. New Chemical Materials (化工新型材料),
            由于空间位阻所产生。                                             2022, 50(10): 76-80.
                                                               [11]  XU G W, SHANG H R, GONG W T, et al. One-pot fabrication of
                                                                   petroleum pitch derived hierarchical porous carbon via a recyclable
            3   结论                                                 MgO-templating strategy for  p-nitrophenol removal[J].  Journal of
                                                                   Environmental Chemical Engineering, 2022, 10(5): 108458.
                 对于传统的制备方法而言,往往需要对原料进                          [12]  HOU J F, LI X D, LI J, et al. Enhanced adsorption of o-phenylphenol
                                                                   on zeolites: A combing pore filling and hydrophobic effects[J].
            行炭化,然后再利用活化剂进行高温活化操作。芳                                 Microporous and Mesoporous Materials, 2020, 294: 109860.
            胺废渣为原料,氧化镁作为模板剂,通过一次炭化                             [13]  TIAN  W J, ZHANG H Y, DUAN X  G,  et al. Nitrogen-  and
                                                                   sulfur-codoped  hierarchically porous carbon  for adsorptive and
            操作成功合成了一种 N、O 原位共掺杂的多孔碳。                               oxidative removal of pharmaceutical contaminants[J]. ACS Applied
            700  ℃的炭化温度不仅远低于物理活化法,甚至比                              Materials & Interfaces, 2016, 8(11): 7184-7193.
                                                               [14]  YANG F Q, YU H M, MAO  X Y,  et al. Boosting electrochemical
            大多数化学活化法所需的温度要低,大幅度降低了                                 CO 2 reduction on ternary heteroatoms-doped  porous  carbon[J].
            制备过程的能耗。在静态吸附实验中,PNP 在                                 Chemical Engineering Journal, 2021, 425: 131661.
                                                               [15]  YU  W L, ZHAO S L, XU G  W,  et al. Facile fabrication of
            RPC-1.00 表面的吸附过程更符合 Langmuir 模型,                       phenylenediamine residue derived N, O co-doped  hierarchical
            达到 562.66 mg/g 的吸附容量;吸附过程更符合准二                         hyperporous carbon for high-efficient chloroxylenol removal[J].
            阶动力学模型;在 pH 2~7 的范围内吸附效果最佳,                            Chemical Engineering Journal, 2022, 433: 133635.
                                                               [16]  PAMIDIMUKKALA P S, SONI H.  Efficient removal  of organic
            且杂质离子对吸附影响不大;固定床动态吸附实验                                 pollutants with activated carbon derived from palm shell: Spectroscopic
            中的吸附容量为 345.01 mg/g。分子模拟计算发现,                          characterization and experimental optimization[J]. Journal of
                                                                   Environmental Chemical Engineering, 2018, 6(2): 3135-3149.
            N、O 原子的掺入能够增加吸附体系的色散力和静                            [17]  AJEBLI S, KAICHOUH G, KHACHANI M, et al. The adsorption of
            电吸引力,有效提高吸附能。吡啶—N 4 和羧基结构                              tenofovir in aqueous solution on activated carbon produced from
                                                                   maize cobs: Insights from experimental, molecular dynamics simulation,
            也能产生很强的氢键作用力,增强了吸附能力。                                  and DFT calculations[J]. Chemical Physics Letters, 2022, 801: 139676.
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