The usage of sanitizers and disinfectants results in the dumping of toxic organic residues in water. There is a global need for effective agents which can adsorb and degrade hazardous chemicals effectively and convert into much safer constituents. In this study, the influence of non-metal dopants (O, S, N) and dimensionality on the catalytic ability of carbon nanomaterials (CNs) such as 0-D (Nitrogen-doped Carbon quantum dots (N-CQDs) synthesized from the seed kernel of Caesalpinia bonducella) and 2-D (Graphene oxide (GO), Sulphur doped graphene oxide (S-GO), Nitrogen-doped graphene oxide (N-GO) synthesized from glucose) have been compared and correlated. The microstructure, surface morphology, elemental composition, fluorescence emission and catalytic ability of the 0-D and 2-D materials are determined and compared. The defect density and the sub defect band gap states influenced by different electronegative non-metal dopants and the dimensions are discussed. The Micro strain increases with increases in dimension. The percentage of Nitrogen as dopant in N-GO is relatively less compared with N-CQDs which led to less fluorescence intensity observed in N-GO. On comparison of the results, it is evident that greater electro negativity of the dopants and reduction in dimension will increase the photo catalytic activity. Also, in comparison with 2-D structures, the large surface area and greater quantum confinement of 0-D structure enhance the degradation of organic pollutants. This observation is well correlated with PL emission intensities of the compared CNs. The results provide a better correlation between dimensionality and functionality of CNs and their impact on catalytic (adsorption and photo) applications in experimentally possible ways.

中文翻译：

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非金属掺杂剂（O、S、N）和碳纳米材料尺寸对有机污染物荧光和光催化降解的影响

使用消毒剂和消毒剂会导致水中有毒有机残留物倾倒。全球需要能够有效吸附和降解危险化学品并转化为更安全的成分的有效试剂。在这项研究中，非金属掺杂剂（O、S、N）和维度对碳纳米材料（CNs）的催化能力的影响，例如从合成的 0-D（氮掺杂碳量子点（N-CQDs）） Caesalpinia bonducella 的种子核）和 2-D（氧化石墨烯 (GO)、掺硫氧化石墨烯 (S-GO)、由葡萄糖合成的掺氮氧化石墨烯 (N-GO)）进行了比较和关联。确定并比较了0-D和2-D材料的微观结构、表面形貌、元素组成、荧光发射和催化能力。讨论了不同电负性非金属掺杂剂和尺寸对缺陷密度和亚缺陷带隙状态的影响。微应变随着尺寸的增加而增加。与 N-CQD 相比，N-GO 中氮作为掺杂剂的百分比相对较低，这导致在 N-GO 中观察到的荧光强度较低。对比结果可知，掺杂剂的电负性越大，尺寸越小，光催化活性越高。此外，与二维结构相比，零维结构的大表面积和更大的量子限制增强了有机污染物的降解。该观察结果与所比较的 CN 的 PL 发射强度密切相关。