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Method for predicting photocatalytic degradation rate of sulfonamide antibiotics

A technology of degradation rate and antibiotics, applied in the field of environmental pollution control, can solve the problems of difficult implementation and easy photodegradation of sulfonamide antibiotics, and achieve the effects of low cost, reduced experiment cost, and wide application range

Inactive Publication Date: 2016-11-16
JINGGANGSHAN UNIVERSITY
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Problems solved by technology

However, which sulfa antibiotics are susceptible to photodegradation? Which are more difficult to implement? we don't know

Method used

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  • Method for predicting photocatalytic degradation rate of sulfonamide antibiotics
  • Method for predicting photocatalytic degradation rate of sulfonamide antibiotics
  • Method for predicting photocatalytic degradation rate of sulfonamide antibiotics

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Embodiment 1: Prediction of photodegradation catalytic efficiency of sulfadiazine (SD)

[0055] (1) Calculate the physical and chemical parameters of SD (E homo , f(+) x and q(C) min )

[0056] According to Table 1, the physicochemical parameters of sulfa antibiotics and sulfadiazine (SD) were obtained, and the results are as shown in Table 2,

[0057] Table 2 SD quantum chemical parameters

[0058]

[0059] (2) Calculate the SD photocatalytic degradation efficiency based on equation (1)

[0060] According to the SD quantum chemical parameters in Table 3, substituted into equation (A), the SD photocatalytic degradation rate was calculated,

[0061] -log(T 1 / 2 )=-5.225-10.581×E homo -2.551×q(C) min -1.482×f(+) x

[0062] =-5.225-10.581×(-0.2163)-2.551×(-0.493)-1.482×0.124

[0063] =-1.86245

[0064] Therefore, the predicted SD of its T 1 / 2 75.85min;

[0065] (3) Verify the predicted SD photodegradation efficiency

[0066] According to the aforementioned...

Embodiment 2

[0069] Embodiment 2: the photodegradation catalytic efficiency prediction of sulfadoxine (SFD)

[0070] (1) Calculate the physical and chemical parameters of SFD (E homo , f(+) x and q(C) min )

[0071] According to Table 1, the physicochemical parameters of sulfa antibiotics and sulfadiazine (SFD) were obtained, and the results are shown in Table 4,

[0072] Table 4 SFD quantum chemical parameters

[0073]

[0074] (2) Calculation of model-based SFD photodegradation efficiency

[0075] -log(T 1 / 2 )=-5.225-10.581×E homo -2.551×q(C) min -1.482×f(+) x

[0076] =-5.225-10.581×(-0.2143)-2.551×(-0.528)-1.482×0.058

[0077] =-1.696

[0078] Therefore, the predicted SFD for its T 1 / 2 is 49.661min;

[0079] (3) Verify the predicted photodegradation efficiency of SFD

[0080] According to the aforementioned method, the photodegradation efficiency of SFD was tested, and the results are shown in Table 5. It can be seen from Table 5 that the relative deviation between th...

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Abstract

A method for predicting photocatalytic degradation rate of sulfonamide antibiotics includes the steps of acquiring quantum-chemical parameters of the sulfonamide antibiotics; constructing a photocatalytic system, and measuring photocatalytic degradation rate of the sulfonamide antibiotics in a training set; establishing a prediction model for photocatalytic degradation of the sulfonamide antibiotics; using the model to predict the photocatalytic degradation rate of the sulfonamide antibiotics. The method of the invention is widely applicable, requires no complex detection apparatus, causes no experimental and environmental pollution, can accurately predict photocatalytic degradation characteristics of sulfonamide antibiotics, provides scientific basis for implementing emission and ecological risk evaluation for sulfonamide antibiotics, and has the advantages such as high prediction flux, low input, low cost and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control and relates to a method for predicting the photocatalytic degradation rate of sulfonamide antibiotics. Background technique [0002] Water is the source of life and the blood of industry, but the problem of water environment in our country is very serious. Due to the disorderly construction and other activities brought about by urban expansion, the water environment quality of major river basins in the country is currently deteriorating. At the same time, it is accompanied by serious pollution emergencies of the local water environment and social phenomena such as "difficult to use water". Seriously affected the living standards and health of the people. On the other hand, with the development of cities or urban agglomerations, the city's demand for water resources is not only for domestic and production water, but also for water landscape resources to meet people's needs ...

Claims

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02G01N2030/027
Inventor 邹小明肖小雨胡萃石刚夏青磊
Owner JINGGANGSHAN UNIVERSITY
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