合理设计和定向合成具有优异选择性的吸附剂，对重金属污染的实际废水的修复具有挑战性和极其重要的意义。本文通过简单的配位反应合成了一种新的单宁酸(TA)基吸附剂(TA@Zr)。吸附等温线实验表明TA@Zr对Pb2+具有较高的吸附能力。令人印象深刻的是，TA@Zr可以达到非常高的选择性系数(40-170)。随着Zr前驱体的降低，TA@Zr的选择性保持不变，说明Zr物种对TA@Zr的选择性影响很小。即使Zr物种被Ti前驱体完全取代，所得吸附剂仍然具有显著的选择性。这些结果表明，TA对TA@Zr的选择性有很大的贡献，而不是Zr物种。进一步，基于XPS的结果，DFT和批量吸附实验，它可以推断TA充当主要的酚羟基吸附网站中羟基的氧原子与Pb2+协调而羟基被取代的氢原子和释放氢离子，从而扩展了选择性吸附Pb2+离子的质子交换机制。\n
\n单宁酸型吸附剂对铅(II)的吸附选择性吸附位点和选择机理数据集，采用实验方法和公式推理计算获得，数据格式为十进制(.xls)，数据量为4组，共21个实验，共243条实验数据。", "ds_source": "
室内实验、公式推理，自主产生。", "ds_process_way": "
采用SEM、TEM等软件进行形态表征。用扫描电子显微镜(SEM)观察TA@Zr的形貌。N2·adsorption-desorption等温线收集在77·K微粒学三星脱水后在383·K·12·h。真空下BET比表面积计算根据多点选择方法使用吸附数据的相对压力(P / P0) 0.05到0.25之间。x射线光电子能谱(XPS)测量是在Axis Ultra (Kratos, XSAM800) XPS光谱仪上进行的，使用Al靶(1486.6 eV) x射线源。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2018-03-01 00:00:00", "ds_acq_end_time": "2018-03-31 00:00:00", "ds_acq_place": "江西省南昌市", "ds_acq_lon_east": 115.45, "ds_acq_lat_south": 28.116666666666667, "ds_acq_lon_west": 116.55, "ds_acq_lat_north": 29.166666666666668, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 288775, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "848137d4-fbfa-4320-bdb5-233c7ab80355.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "使用申明：“单宁酸型吸附剂对铅(II)的吸附选择性吸附位点和选择机理数据集（2018年3月）”来源于国家重点研发计划《大型煤矿和有色矿矿井高效利用技术与示范》（项目编号：2018YFC0406400）。", "ds_from_station": null, "organization_id": "4f9aad20-0a6f-4efd-9b8b-70cd10164ea3", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.UTCMW.db2127.2022", "subject_codes": [ "170.50" ], "quality_level": 3, "publish_time": "2022-05-30 16:51:25", "last_updated": "2025-06-30 16:27:07", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.UTCMW.db2127.2022", "i18n": { "en": { "title": "Dataset of Selective Adsorption Sites and Selection Mechanisms of Tannic Acid Adsorbents for Lead (II) Adsorption (March 2018)", "ds_format": "Excel", "ds_source": "
Indoor experiments, formula reasoning, independently generated.", "ds_quality": "
The data quality is good.", "ds_ref_way": "", "ds_abstract": "
Reasonable design and directed synthesis of adsorbents with excellent selectivity are challenging and extremely important for the remediation of actual wastewater contaminated with heavy metals. This article synthesized a new tannic acid (TA) based adsorbent through a simple coordination reaction（ TA@Zr ）The adsorption isotherm experiment showed that TA@Zr Has high adsorption capacity for Pb2+. Impressively, TA@Zr It can achieve a very high selectivity coefficient (40-170). As the Zr precursor decreases, TA@Zr The selectivity remains unchanged, indicating that Zr species have an impact on TA@Zr The selective impact is minimal. Even if Zr species are completely replaced by Ti precursors, the resulting adsorbent still exhibits significant selectivity. These results indicate that TA is TA@Zr The selectivity has made a significant contribution, rather than the Zr species. Furthermore, based on the results of XPS, DFT, and batch adsorption experiments, it can be inferred that TA acts as the main adsorption site for phenolic hydroxyl groups. The oxygen atoms of hydroxyl groups coordinate with Pb2+, while the hydrogen atoms of hydroxyl groups are replaced and hydrogen ions are released, thereby expanding the proton exchange mechanism for selective adsorption of Pb2+ions.\n
\nThe dataset of selective adsorption sites and selection mechanism of tannic acid type adsorbent for lead (II) was obtained through experimental methods and formula inference calculation. The data format is decimal (. xls), with 4 sets of data, a total of 21 experiments, and 243 experimental data.
", "ds_time_res": "日", "ds_acq_place": "Nanchang City, Jiangxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Morphological characterization was performed using software such as SEM and TEM. Observe with scanning electron microscope (SEM) TA@Zr The appearance. The N2 adsorption desorption isotherm was collected at 383 · K · 12 · h after dehydration of Samsung particles at 77 · K. The BET specific surface area calculation under vacuum is based on the multi-point selection method using adsorption data with a relative pressure (P/P0) between 0.05 and 0.25. The X-ray photoelectron spectroscopy (XPS) measurement was performed on an Axis Ultra (Kratos, XSAM800) XPS spectrometer using an Al target (1486.6 eV) X-ray source.", "ds_ref_instruction": "\r\nUsage statement: \"Selective adsorption sites and selection mechanism dataset of tannic acid type adsorbent for lead (II) (March 2018)\" is sourced from the National Key Research and Development Program \"Efficient Utilization Technology and Demonstration of Large Coal Mines and Nonferrous Mines\" (Project No. 2018YFC0406400)." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "单宁酸", "重金属废水", "吸附剂" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "江西省南昌市" ], "ds_time_tags": [ 2018 ], "ds_contributors": [ { "true_name": "杨利明", "email": "yangliming0809185@126.com", "work_for": "南昌航空大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杨利明", "email": "yangliming0809185@126.com", "work_for": "南昌航空大学", "country": "中国" } ], "ds_managers": [ { "true_name": "敏玉芳", "email": "myf@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "其他" }